Senior Developer & Technical Project Manager

particle41llc· Software Engineering
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About this role

Role Overview
You will take ownership of development across our web applications and SaaS products. This includes building new features, reviewing and improving existing code, managing technical projects, and ensuring our systems are secure, scalable, and aligned with our long-term vision. You will work closely with leadership and non-technical team members, so strong communication and the ability to translate technical concepts into clear direction is essential.

Key Responsibilities

Development & Code Ownership
● Build, test, and deploy features for our SaaS web applications
● Read, analyze, and improve existing codebases
● Ensure code quality, scalability, and maintainability
● Identify and fix vulnerabilities, inefficiencies, and poor architecture
● Establish and enforce development best practices and standards

Technical Strategy & Architecture
● Design systems and features with long-term scalability in mind
● Make decisions on frameworks, tools, and structure
● Evaluate AI-generated code for accuracy and quality before implementation
● Optimize performance and system reliability

Project Management
● Own development timelines and deliverables
● Break down projects into clear tasks and milestones
● Collaborate with internal team members (marketing, ops, leadership)
● Ensure projects move forward proactively without constant oversight

AI-Enhanced Development
● Use tools like Claude and Abacus to accelerate development where appropriate
● Prompt effectively and refine outputs
● Validate and improve AI-generated code (not blindly trust it)

Deployment & DevOps
● Manage code through GitHub workflows
● Deploy and maintain applications via Vercel (or similar platforms)
● Handle integrations, APIs, and third-party tools
● Troubleshoot bugs, outages, and performance issues

Who You Are
● A true developer first — you understand code deeply, not just tools
● Experienced enough to recognise bad code, security risks, and poor structure immediately
● Comfortable working in fast-moving environments with evolving products
● Highly proactive — you don’t wait to be told what to do
● Strong communicator with excellent English (written and verbal)
● Organised and capable of managing multiple projects simultaneously

Required Experience
● 5+ years of hands-on development experience
● Proven ability to work within and improve existing codebases
● Experience building and maintaining web applications or SaaS products
● Strong understanding of:
○ Frontend and/or full-stack development
○ APIs and integrations
○ GitHub workflows
○ Deployment platforms (Vercel preferred)
● Experience reviewing code for quality, security, and scalability

This Role Is NOT For You If...
● You rely entirely on AI to write and understand code
● You struggle to explain technical concepts clearly
● You need constant direction or supervision
● You prioritise speed over quality and long-term structure

Frequently Asked Questions

Is the salary disclosed for the Senior Developer & Technical Project Manager position at particle41llc?
The salary for this Senior Developer & Technical Project Manager role at particle41llc is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Is the Senior Developer & Technical Project Manager job at particle41llc remote?
Yes, this Senior Developer & Technical Project Manager position at particle41llc is remote, with team members based in Argentina - Remote; LATAM - Remote; Mexico - Remote. You can work from home or anywhere in the supported regions.
Which team or department does the Senior Developer & Technical Project Manager at particle41llc belong to?
This Senior Developer & Technical Project Manager position is part of the Software Engineering department at particle41llc. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Senior Developer & Technical Project Manager position at particle41llc?
Click the "Apply Now" button on this page. You will be redirected to particle41llc's official application portal hosted on greenhouse where you can submit your application directly.
When was the Senior Developer & Technical Project Manager job at particle41llc posted?
This Senior Developer & Technical Project Manager position at particle41llc was posted on May 8, 2026. Apply as soon as possible — early applications are often reviewed first.
Senior Developer & Technical Project Manager
particle41llc
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